HVAC radius return air box with a square throat



FIG. 1 depicts an isometric view of an HVAC radius return air box with a square throat showing my new design.

FIG. 2 depicts an alternative isometric view thereof.

FIG. 3 depicts a side elevation view thereof.

FIG. 4 depicts a side elevation view thereof.

FIG. 5 depicts a side elevation view thereof.

FIG. 6 depicts a top plan view thereof; and,

FIG. 7 depicts a bottom plan view thereof. 

CLAIM The ornamental design for an HVAC radius return air box with a square throat, as shown and described. 